31424253 has 8 divisors (see below), whose sum is σ = 47884608. Its totient is φ = 17956704.

The previous prime is 31424251. The next prime is 31424287. The reversal of 31424253 is 35242413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31424253 - 2¹ = 31424251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748176 + ... + 748217.

It is an arithmetic number, because the mean of its divisors is an integer number (5985576).

Almost surely, 2^31424253 is an apocalyptic number.

It is an amenable number.

31424253 is a deficient number, since it is larger than the sum of its proper divisors (16460355).

31424253 is a wasteful number, since it uses less digits than its factorization.

31424253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496403.

The product of its digits is 2880, while the sum is 24.

The square root of 31424253 is about 5605.7339394588. The cubic root of 31424253 is about 315.5646310447.

Adding to 31424253 its reverse (35242413), we get a palindrome (66666666).

The spelling of 31424253 in words is "thirty-one million, four hundred twenty-four thousand, two hundred fifty-three".